Chiri mumwoyo, chiri muninga.

Word definitions

ninga: Large underground cave.

Translation

What is in the heart is in a hidden underground cave.

Inspiration

Caves and shelters hidden away in rocks were used as secret places known only to the local communities. They were used as places for making medicine, rainmaking, as burial places or for grain storage.

Application

What is in your heart is known only by you (unless you reveal it).